package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.Category;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
public class UserServiceImpl implements UserService {

    public static  final  String WX_LOGIN="https://api.weixin.qq.com/sns/jscode2session";

    @Autowired
    private WeChatProperties weChatProperties;

    @Autowired
    private UserMapper userMapper;
    @Override
    public User login(UserLoginDTO userLoginDTO) {
        return null;
    }

    @Override
    public User wxlogin(UserLoginDTO userLoginDTO) {
//        调用微信接口服务，获得当前微信用户的openId
        String openid = getOpenId(userLoginDTO.getCode());
        if (openid==null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }
        User user = userMapper.getByOpenId(openid);
        if (user==null){
            user= User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);
        }
        return  user;
    }

    @Override
    public List<Category> getTypeList(String type) {
        List<Category> categoryList= userMapper.getTypeList(type);


        return categoryList;
    }

    private String getOpenId(String code){
        Map<String,String> map=new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code",code);
        map.put("grant_type","authorization_code");
        String s = HttpClientUtil.doGet(WX_LOGIN,map);
        JSONObject jsonObject = JSON.parseObject(s);
        return  jsonObject.getString("openid");
    }
}
